Best Answer - Chosen by the Asker
Your question reveals one of the differences between human memory and different from computer memory; we need to refresh often our memory, at least for those things that we 'acquired' recently, therefore I suggest that you make some
notes, sentences etc. about those rarely used terms that you want to master,
break into sections of 30/50 terms, and periodically review those sections, eventually with the help of randomized flash cards; it would be like having a friend that speaks to you using only rarely used terms!
For the computer 'seeing once', 'knowing' and 'mastering' are just the same, but there are other aspects were we (primates) are still the winners, (recovery of the whole memory just from an hint or fragment, like the name of a song from some notes).
